It is one type of non-calcined Brown Fused Aluminium Oxide grain for coated abrasives application, the grain shape is very sharp, the strip and needle shape are well kicked out of the grains
With the concentrated size distribution and dust collected by well water washing, can be used for producing all kinds of coated abrasives products, such as sand paper, cloth, rolls, belts, etc.
Colour
Shape
Crystal Form
Specific Gravity
Hardness
Magnetic Material
Brown
Angular, edge sharp
Alpha alumina trigonal system 3.92 2090 Knoop scale, 9.0 Mohs scale 0.0076%
Al2O3 95.0-94.5%
TiO2 3.0-3.5%
SiO2 ≤ 2.4%
Fe2O3 ≤ 0.3%
12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220
240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200